
\begin{table}[htb]
\caption{Robustness check: Table F2 without upper chambers}
\begin{center}
\begin{tabular}{l c c c}
\hline
 & Experiment 1 & Experiment 2 & Experiment 3 \\
\hline
Citizens                                         & $3.25^{*}$        & $4.20^{*}$        & $-2.05^{*}$       \\
                                                 & $ [ 2.34;  4.08]$ & $ [ 3.43;  5.02]$ & $ [-3.38; -0.67]$ \\
Benefits                                         &                   &                   & $4.16^{*}$        \\
                                                 &                   &                   & $ [ 2.95;  5.34]$ \\
Citizens $\times$ Benefits                       &                   &                   & $2.38^{*}$        \\
                                                 &                   &                   & $ [ 0.80;  3.98]$ \\
Role conceptions (Neutral)                       & $1.44^{*}$        & $1.91^{*}$        & $0.57$            \\
                                                 & $ [ 0.62;  2.21]$ & $ [ 1.26;  2.61]$ & $ [-0.66;  1.79]$ \\
Role conceptions (Trustee)                       & $2.95^{*}$        & $2.52^{*}$        & $0.83$            \\
                                                 & $ [ 2.17;  3.71]$ & $ [ 1.85;  3.13]$ & $ [-0.55;  2.05]$ \\
Population $\times$ Neutral role                 & $-1.33^{*}$       & $-2.41^{*}$       & $0.43$            \\
                                                 & $ [-2.32; -0.29]$ & $ [-3.44; -1.39]$ & $ [-1.19;  1.99]$ \\
Population $\times$ Trustee role                 & $-3.09^{*}$       & $-2.24^{*}$       & $0.90$            \\
                                                 & $ [-4.06; -2.11]$ & $ [-3.18; -1.30]$ & $ [-0.65;  2.46]$ \\
Benefits $\times$ Neutral role                   &                   &                   & $-0.09$           \\
                                                 &                   &                   & $ [-1.52;  1.26]$ \\
Benefits $\times$ Trustee role                   &                   &                   & $0.21$            \\
                                                 &                   &                   & $ [-1.28;  1.64]$ \\
Citizens $\times$ Benefits $\times$ Neutral role &                   &                   & $-1.07$           \\
                                                 &                   &                   & $ [-3.14;  0.94]$ \\
Citizens $\times$ Benefits $\times$ Trustee role &                   &                   & $-1.35$           \\
                                                 &                   &                   & $ [-3.17;  0.59]$ \\
Intercept                                        & $3.43^{*}$        & $2.00^{*}$        & $3.28^{*}$        \\
                                                 & $ [ 2.77;  4.12]$ & $ [ 1.53;  2.48]$ & $ [ 2.26;  4.34]$ \\
\hline
N                                                & $661$             & $661$             & $661$             \\
\hline
\multicolumn{4}{l}{\scriptsize{\parbox{0.9\linewidth}{$^*$ Null hypothesis value outside the 95\% confidence interval. Entries are unstandardized coefficients from a linear mixed-effect regression model. Bootstrapped confidence intervals in parentheses. Countries function as groups. Support for PTAs is captured on an 11-point scale.}}}
\end{tabular}
\label{tab:tableK3}
\end{center}
\end{table}
